Question

What Is Periodicity In Properties Of Elements With Reference To The Modern Periodic Table? Why Do All The Elements Of The Same Group Have Similar Properties? How Does The Tendency Of Elements To Gain Electrons Change As We Move From Left To Right In A Period? State The Reason Of This Change?

Answer 1

Explanation:

all the elements of the same group have similar properties because they have the same number of electrons in their valence shell and have same valency

the tendency of elements to gain electrons is called electronegativity so from left to right in a period the electronegativity will increase

this this is due to increase in nuclear charge from left to right in a period